JP3511240B2 - Cutting board, cutting board sheet mounting plate, cutting board sheet - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable cutting board, which is easy to use and hygienic, which keeps the cooking surface of the cutting board clean and minimizes the consumption of the cutting board material. A cutting board sheet mounting base plate and a cutting board sheet are provided.

[0002]

2. Description of the Related Art Disposable cutting boards of various shapes have been filed because the cooking surface of cutting boards is apt to be painful and it is difficult to reproduce them by planing. Another advantage of the disposable cutting board is that it can be discarded without washing, even if it has persistent oil stains. However, in order to make it disposable, it is necessary to make it as thin as possible from the viewpoint of resource saving. The cutting board needs to be soft and sure to receive the blade of a kitchen knife. If a thin and flexible material is used, the shape will be unstable and it will be easily cut.

Even if a stable shape is produced, a problem arises in terms of mental security when used. In JP-A-2000-316734, a reinforcing material is put inside the sheet-like body to provide slip prevention on both sides, but it does not solve the above problem. If the reinforcing material is used enough to stabilize the shape, the amount of the reinforcing material is increased, resulting in an uneconomical product. There is a need for cutting boards that are solid and stable and can be easily thrown away.

As the shape of the sheet-like body, Japanese Patent Laid-Open No. 2000-8
A roll type cutting board sheet such as 3844 requires an extremely flexible material or an extremely thin material. If it is not flexible, it will have a curl, and when placed on a table it will not fit on the table and is unstable and difficult to use. If the object is flexible or extremely thin so as not to cause a curl, the knife blade will unnecessarily bite into the cutting board sheet during cooking, making it difficult to use or easy to cut.

Japanese Patent Laid-Open No. 10-33396 discloses a sheet-like cutting board which is a flexible material and is not easily cut. This is a simple cutting board with a multilayer structure that sandwiches fibrous material that is highly flexible and difficult to cut, but it is thought to be plant fiber or synthetic resin fiber used in general life. Hateful. It is a plant fiber used in general life, and when it is a thin sheet, when you hit it with a knife such as a knife or slide it on a hard plate. Easily cut. The use of such a knife is a daily use, not a special use. In other words, in order to provide the functions that are normally required for a cutting board in Japanese Patent Laid-Open No. 10-33396, the fibers used must be special or have a shape with a considerable thickness, which results in a considerable increase in cost. I don't get.

[0006] At present, a cutting board made of a synthetic resin thin plate is available for outdoor use as a supplement to the difficulty of using a sheet-like cutting board, but it is difficult to use because it has a bending tendency depending on how it is placed. Moreover, when it is thrown away, it is a waste of resources. Further, Japanese Patent Application Laid-Open No. 2000-83844 has been filed as a cutting board sheet having a three-layer structure taking waterproof treatment-plastic layer, paper layer, antibacterial treatment-polyethylene layer as an example. if,
It is hard to say that it contributes to the effective use of resources. The same applies to Japanese Patent Laid-Open No. 9-108126.

When the cutting board is a sheet-like body alone, it is required to have a certain thickness in order to function as a cutting board and maintain a stable shape. The thin sheet is not only unstable in shape, but also makes the person who uses it feel mentally uneasy. Therefore, a cooking sheet having a fastening material as in actual registration 3042906 has been devised. The number of manufacturing processes such as application of a fastening material and sticking of a release material increases, which leads to an increase in cost.

[0008] As a product for eliminating the above-mentioned anxiety
There is -174135, and a protrusion is provided on the base plate to prevent the sheet-like cutting board from floating, and the hole of the sheet-like cutting board is fitted into the protrusion. If the protrusions are raised to such an extent that the sheet-like body having the nature and shape to float up does not come out of the hole, it will be an obstacle during use. Alternatively, the installation is troublesome if they are fitted by crimping. Actual registration 307
Like 7255, the structure is complicated in the method of attaching the crimping frame to the cutting board using screws and hinges and sandwiching the sheet-like body,
It takes time to clean the dirty frame.

As a sheet-shaped member whose shape is stabilized, there is a sheet-shaped laminated type cutting board, which is disclosed in JP-A-5-146371, JP-A-5-176849, and JP-A-5-16849.
-54765, JP-A-11-18971 and the like. The cutting board is soiled by the cooking work and must be washed after the cooking work. Even if the front surface is peeled off, the side surface and the back surface cannot be left unwashed. To wash, the adhesion between the laminates must be perfect, and the more complete the more difficult the peeling will be. JP-A-6-54765
If a synthetic resin thin plate is welded or adhered to the outer peripheral portion of the cutting board as in claim 3, peeling becomes even more difficult.

Although the cutting board is wrapped with an aluminum thin plate to make it replaceable, the cutting surface of the aluminum thin plate having a thickness that is not easily cut is suitable for receiving a knife such as a kitchen knife. It is hard to say that it is a material. A metal that is thick enough to be called a plate is too stiff to catch the knife blade. Also, if the blade hits hard, the scratch will open too much and will not return to its original shape.

On the other hand, as in Japanese Utility Model Laid-Open No. 56-078743, Japanese Utility Model Laid-Open No. 61-157442, and Japanese Utility Model Laid-Open No. 62-4249, a place for placing cooking material and chips on the cooking surface is set. There is an application in which a cutting wall such as 56654 is provided with a partition wall, and a function other than cutting is added to the cutting board, such as a cutting board that does not spill when transferring cut pieces of cooked material to a pan or the like. It is very uneconomical that the cutting board hurts on the cooking surface, and as the cooking surface deteriorates, the parts provided for these functions are also discarded.

[0012]

A hygienic and easy-to-use cutting board that leads to effective utilization of resources by making only the cooking surface of the cutting board a disposable sheet-like material, a cutting board sheet mounting base board, and a thin and thin cutting board. Also, provide an economical cutting board sheet that can withstand general cooking.

[0013]

A cutting board sheet mounting base plate comprising a cutting portion for placing a cutting board sheet and a fixing means for fixing the cutting board sheet, wherein the fixing means is provided in the cutting portion. Attaching a cutting board sheet characterized in that a pressing section is provided rotatably at both ends, and the pressing section is rotated by its own weight to press and fix one end of the cutting board sheet to the cutting section at the upper end of the pressing section. Provide a base plate.

A cutting board sheet mounting base plate comprising a cutting section for mounting a cutting board sheet and a fixing means for fixing the cutting board sheet, wherein the fixing means is a step provided around the cutting section or Provided is a cutting board sheet mounting base plate, which is a protrusion and has a surface in which the cutting board sheet and the cutting portion are in contact with each other, which is made smooth so that an adhesive effect is produced by dropping water drops.

A cutting board sheet mounting base plate comprising a cutting part for placing a cutting board sheet and a fixing means for fixing the cutting board sheet, wherein the end of the fixing means is extended to serve as a cooking material storage area. A base plate for attaching a cutting board sheet is provided.

A cutting board sheet mounting base plate comprising a cutting portion for mounting a cutting board sheet and a fixing means for fixing the cutting board sheet, the end of the fixing means protruding upward, Provided is a cutting board sheet mounting base plate, which is used as a fall prevention part.

A cutting board sheet to be used by being attached to a cutting board sheet mounting base plate, characterized in that the upper surface is a weak cutting resistant material and the lower surface is a strong cutting resistant material.
Cutting board sheet attachment Provide a cutting board sheet that can be used by attaching it to the base plate.

A cutting board sheet characterized in that the upper surface of the cutting board sheet is a sheet material made of a flexible material and the lower surface is a foil or a sheet material made of a hard material, and the flexible material and the hard material are laminated together. To serve.

A cutting board sheet is characterized in that the cutting board sheet is subjected to a curing treatment from the back surface of a flexible synthetic resin sheet-like body, and has a flexible upper surface and a hard lower surface.

A cutting board is prepared by arranging a cutting board sheet on any of the cutting board mounting base plates.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a first embodiment showing a basic shape of the present invention. A cutting unit 2 for placing the cutting board sheet 1 and a fixing means 3 for fixing the cutting board sheet 1
A cutting board composed of a cutting board sheet mounting base board 4 and a cutting board sheet 1, the fixing means 3 serving as a pressing section rotatably provided at both ends of the cutting section 2. .

Since the cutting board of the present invention has the fixing means 3, even if a cutting board sheet made of a thin material is used, the surroundings of the sheet are firmly pressed to stabilize the shape of the sheet, and the cutting board can be used with peace of mind. Since the cutting board sheet can be made thinner, it can contribute to resource saving.
An appropriate elasticity is required to comfortably use the paddle, but it can be adjusted by selecting the material of the cutting portion 2, and it is also possible to provide a product whose elasticity is adjusted according to the purpose of use. . The cutting board has organic substances trapped in the cuts, which makes it easy for bacteria to propagate, but by replacing the sheet, you can always keep it clean. Only the surface used for cutting the cutting board can be replaced, making it an economical and easy-to-use disposable cutting board.

Various cutting board sheets 1 have been invented and devised for various purposes, but many of them have an unstable shape because they are not thick. A cutting board sheet mounting base plate, which comprises a cutting part 2 for mounting the cutting board sheet 1 and a fixing means 3 for fixing the cutting board sheet 1, fixes the cutting board sheet 1 characterized by various configurations. , You can get a sense of stability and security during use.

FIG. 2A is a perspective view of the first embodiment, and FIG. 2B is a sectional view of FIG. 2A. The fixing means 3
Is a pressing part 6 rotatably provided at both ends of the cutting part 2, and is attached to a cutting plate sheet that is rotated and presses one end of the cutting board sheet 1 to the cutting part 2 with the upper end 14 of the pressing part 6 to fix it. It is a base plate. The structure is simple and the work of attaching and detaching the cutting board sheet is easy. Although it is possible to attach an elastic body such as a spring to the holding portion 6, the dead weight of the cutting portion 2 pushes the rotating shaft 15 downward, and the upper end 14 of the holding portion 6 holds the cutting board sheet 1 on the cutting portion 2. Hold down.

FIG. 3A is a perspective view of the second embodiment, and FIG. 3B is a sectional view taken along line XX in FIG. 3A. The cutting board sheet mounting base plate 4 is a frame-shaped member 5 which fits the fixing means 3 to the peripheral edge of the cutting section 2 to press and fix the periphery of the cutting board sheet 1 to the cutting section 2. The cutting board sheet 1 is placed on the part 2 and the frame-shaped member 5 is fitted into the cutting part 2 for use. The cutting board sheet mounting base plate, which is a frame-shaped member 5 for fixing the fixing means 3 to the cutting edge portion 2 by fixing the fixing means 3 to the cutting edge portion 2 by pressing the periphery of the cutting board sheet 1, has a simple structure. The cutting board sheet is securely attached, it is easy to wash, and the manufacturing cost is low.

FIG. 4 (A) is a perspective view of the third embodiment, and FIG. 4 (B) is a sectional view taken along line XX in FIG. 4 (A). A step 7 provided with the fixing means 3 around the cutting unit 2
The cutting board sheet mounting base plate is characterized in that a concave portion corresponding to the shape of the cutting board sheet used in the cutting unit 2 is formed. The contact surface between the cutting board sheet 1 and the cutting unit 2 needs to be smooth. An adhesive effect is produced by dropping water drops on the cutting unit 2, and the step 7 around the cutting sheet 1 prevents the cutting sheet 1 from slipping off due to skidding. The structure is simple, and the work of attaching and detaching the seat and the cleaning are extremely easy.

FIG. 5 (A) is a perspective view of the fourth embodiment, and FIG. 5 (B) is a sectional view taken along line XX in FIG. 5 (A). A cutting board sheet mounting base plate, characterized in that the fixing means 3 is a protrusion 8 provided around the cutting section 2, wherein the cutting board sheet 1 is flexible and smooth, and the cutting section 2 is Must be smooth. A cutting board sheet 1 having an adhesive effect is produced by dropping water drops on the cutting unit 2.
Cutting board sheet 1 in which projections 8 around
Prevents the skid from slipping off. .

FIG. 6A is a perspective view of the fifth embodiment, and FIG. 6B is a sectional view taken along line XX in FIG. 6A. The fixing means 3 is a lid-shaped member 9 that fits on both ends of the cutting unit 2, and the lid-shaped member 9 is fitted on both ends of the cutting unit sheet 1 placed on the cutting unit 2 to press the cutting sheet. A cutting board sheet mounting base plate that is fixed. The structure is simple, the cutting board sheet is securely attached, it is easy to wash, and the manufacturing cost is low.

FIG. 7 is a perspective view of a sixth embodiment, which is a cutting board sheet mounting base plate in which the end of the cutting unit 2 is extended to form a cooking material storage space 10.

FIG. 8 is a perspective view of the seventh embodiment, which is a cutting board sheet mounting base plate in which the end of the frame-shaped member 5 as the fixing means 3 is extended to form a cooking material storage space 10. .

FIG. 9 is a perspective view of the eighth embodiment, which is a cutting board sheet mounting base plate in which an end of the pressing portion 6 which is the fixing means 3 is extended to form a cooking material storage space 10. In the conventional cutting board with material storage, when the portion used for cutting the material was damaged, the portion used for material storage had to be discarded at the same time. In No. 8, it is a cutting board sheet mounting base plate for constructing a very economical cutting board with a material storage because only the damaged part can be replaced, that is, the cutting board can be regenerated by simply replacing the sheet.

FIG. 10 is a perspective view of a ninth embodiment of the present invention, wherein the cutting portion 2 has an end projecting upward to serve as a fall-preventing portion 11 for cooking ingredients. Is.

FIG. 11 is a perspective view of a tenth embodiment of the present invention. The cutting board sheet mounting base plate is characterized in that the end of the fixing means 3 is projected upward to form a fall prevention portion 11 for cooking ingredients. is there. A conventional cutting board with a fall prevention unit 11 has a fall prevention unit 1 when the portion used for cutting the material is damaged.
Although the part used for No. 1 had to be discarded at the same time, in the ninth and tenth embodiments of the present invention, only the damaged part can be replaced, that is, the sheet can be regenerated as a cutting board. Therefore, it is a cutting board sheet mounting base plate for constituting a very economical cutting board with the fall prevention portion 11.

FIG. 12A is a perspective view showing the structure of a cutting board sheet according to the eleventh embodiment, which is a cutting board sheet 1 used by being attached to a cutting board sheet mounting base plate, the upper surface of which is weakly cut-resistant. A cutting board sheet which is a material 12 and whose lower surface is a strong cutting resistance material 13. The weak cut-resistant material 12 is a flexible synthetic resin, vegetable fiber, or the like, and any material and shape can be used as long as it can softly receive the blade. The strong cutting resistant material 13 is a hard synthetic resin, a metal, a compressed wood material or the like, and any material may be used as long as it reliably receives the blade of a kitchen knife or the like and prevents cutting.

FIG. 12 (B) is a sectional view showing a state of use of the cutting board sheet in the eleventh embodiment. The cutting board sheet 1 of the present embodiment is a sheet-like body made of a flexible synthetic resin or the like whose upper surface is a weak cut-resistant material 12, and a sheet-like body made of a hard synthetic resin whose lower surface is a strong cut-resistant material 13 or the like. ,
A cutting board sheet characterized by laminating a flexible material 16 and a hard material 17.

The flexible material 16 softly catches the blade 18 such as a knife and is torn by the blade 18 at the same time.
The hard material 17 prevents cutting due to cooking, fixes the upper flexible material 16 on the lower hard material 17, and stops the flexible material 16 from being cut and spread out left and right. . As a result, the upper flexible material 16
Grips the blade 18 from the left and right in the direction of the arrow 19 and receives it. This makes it possible to realize a cutting board sheet that softly receives the blade 18 even if it is thin and is not easily cut.

FIG. 13A is a perspective view showing the structure of a cutting board sheet according to the twelfth embodiment.
However, the upper part is a sheet-like body made of the flexible material 16 and the lower part is a foil or sheet-like body made of the hard material 17, and the hardness between the flexible material 16 and the hard material 17 is almost intermediate between the two. A cutting board sheet characterized in that a sheet-shaped body made of an intermediate material 20 is sandwiched and stuck together.

FIG. 13 (B) is a sectional view showing the state of use of the cutting board sheet in the twelfth embodiment. The effect of this embodiment is almost the same as that of the eleventh embodiment, but the presence of the intermediate material 20 allows the blade 18 to be received more softly.

FIG. 14 (A) is a perspective view including a partial cross section showing the structure of a cutting board sheet according to the thirteenth embodiment, in which the cutting board sheet is cured from the back surface of a flexible synthetic resin sheet. The cutting board sheet is characterized in that the upper surface is the soft portion 21 and the lower surface is the hard portion 22.
The cutting board sheet 1 in which a plurality of sheet-shaped bodies having different hardnesses are bonded together causes a rapid stepwise change in hardness from the upper part to the lower part with cutting, whereas the hardened one gradually changes the hardness. The blade of a knife can be received softly.

[0040]

[Effects of the Invention] A cutting unit for placing a cutting board sheet,
A cutting board sheet mounting base plate comprising fixing means for fixing a cutting board sheet, wherein the fixing means is a pressing portion rotatably provided at both ends of a cutting portion, and the pressing portion is rotated by its own weight. Then, the cutting board sheet mounting base plate is characterized in that one end of the cutting board sheet is pressed and fixed to the cutting portion by the upper end of the pressing portion, so that the following effects are obtained.

It is possible to fix a cutting board sheet characterized by various configurations, and to obtain stability and a sense of security during use. The structure is simple and the work of attaching and detaching the cutting board sheet is easy.

A cutting board sheet mounting base plate comprising a cutting section for mounting a cutting board sheet and a fixing means for fixing the cutting board sheet, wherein the fixing means is a step or a step provided around the cutting section. The cutting board sheet mounting base plate is characterized in that it is a projection, and the surface where the cutting board sheet and the cutting part contact is made smooth, and the adhesive effect is produced by hanging water droplets. Play.

The structure is simple, and the work of attaching and detaching the seat and the cleaning are extremely easy.

A cutting board sheet mounting base plate comprising a cutting part for mounting a cutting board sheet and a fixing means for fixing the cutting board sheet, wherein the end of the fixing means is extended to serve as a cooking material storage area. Since it is a cutting board sheet mounting base plate, it has the following effects.

Since only the damaged portion can be replaced, that is, the cutting board can be regenerated by simply replacing the cutting board, a very economical cutting board mounting base board for constructing a cutting board with a material storage space can be realized.

A cutting board sheet mounting base plate comprising a cutting portion for mounting a cutting board sheet and a fixing means for fixing the cutting board sheet, wherein the end of the fixing means is projected upward, Since it is a cutting board sheet mounting base plate, the following effects are achieved.

Since only the damaged portion can be replaced, that is, the cutting board can be regenerated as a cutting board, it is possible to realize a very economical cutting board mounting base plate for constructing a cutting board with a fall prevention unit. .

Cutting board sheet A cutting board sheet to be used after being attached to a base plate for mounting, characterized in that the upper surface is a weak cutting resistant material and the lower surface is a strong cutting resistant material.
Cutting board sheet attachment Since it is a cutting board sheet that can be attached to the base board and used, the following effects are achieved.

The strong cut-resistant material prevents cutting due to cooking, and the weak cut-resistant material on the upper part is fixed on the strong cut-resistant material on the lower part, and the weak cut-resistant material is cut and spread to the left and right. The cutting board sheet that does not easily cut can be realized by holding the blade softly even if it is thin.

A cutting board sheet characterized in that the upper surface of the cutting board sheet is a sheet material made of a flexible material and the lower surface is a foil or a sheet material made of a hard material, and the flexible material and the hard material are stuck together. Because of this, the following effects are achieved.

It is possible to easily manufacture a cutting board sheet that is soft even if it is thin and receives the blade 18 and is not easily cut.

Since the cutting board sheet is a cutting board sheet characterized by having a flexible synthetic resin sheet-like body subjected to a curing treatment from the back surface and having a soft upper surface and a hard lower surface, the following effects are obtained.

It is possible to easily manufacture a cutting board sheet that is very soft and hard to receive and cut even if the knife is thin, even if it is thin.

Since the cutting board is a cutting board in which a cutting board sheet is arranged on any of the mounting board bases, the following effects can be obtained.

Even if a cutting board made of a thin material is used, the periphery of the sheet is pressed by the fixing means, so that the shape of the cutting board is stable and the cutting board can be used with peace of mind.
Since the cutting board sheet can be made thinner, it can contribute to resource saving.

[Brief description of drawings]

FIG. 1 is a perspective view showing the shape of the entire invention.

FIG. 2A is a perspective view showing the overall shape of the first embodiment. FIG. 3B is a sectional view taken along line XX in FIG.

FIG. 3A is a perspective view showing the overall shape of the second embodiment. (B) It is a cross-sectional view taken along line XX in FIG.

FIG. 4A is a perspective view showing the overall shape of the third embodiment. FIG. 4B is a sectional view taken along line XX in FIG.

FIG. 5A is a perspective view showing the overall shape of the fourth embodiment. FIG. 6B is a sectional view taken along line XX in FIG.

FIG. 6A is a perspective view showing the overall shape of the fifth embodiment. FIG. 6B is a sectional view taken along line XX in FIG.

FIG. 7 is a perspective view showing the overall shape of the sixth embodiment.

FIG. 8 is a perspective view showing the overall shape of the seventh embodiment.

FIG. 9 is a perspective view showing the overall shape of the eighth embodiment.

FIG. 10 is a perspective view showing the overall shape of the ninth embodiment.

FIG. 11 is a perspective view showing the overall shape of the tenth embodiment.

FIG. 12 (A) is a perspective view showing the overall shape of the eleventh embodiment. (B) It is sectional drawing which shows the use condition of FIG. 12 (A).

FIG. 13A is a perspective view showing the overall shape of the twelfth embodiment. (B) It is sectional drawing which shows the use condition of FIG. 13 (A).

FIG. 14A is a perspective view showing the overall shape of the thirteenth embodiment. (B) It is sectional drawing which shows the use condition of FIG. 14 (A).

[Explanation of symbols]

1 cutting board sheet 2 Judgment section 3 fixing means 4 Cutting board Sheet mounting base plate 5 Frame-shaped members 6 Hold down part 7 steps 8 protrusions 9 Lid-shaped member 10 Cooking material storage 11 Fall prevention section 12 Weak cut resistant material 13 Strong cutting resistance material 14 top 15 rotation axis 16 Flexible material 17 hard material 18 blades 19 arrows 20 Intermediate material 21 Soft part 22 Hard part

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A47J 47/00

Claims (8)

(57) [Claims] 1. A cutting unit for mounting a cutting board sheet,
A cutting board sheet mounting base plate comprising fixing means for fixing a cutting board sheet, wherein the fixing means is a pressing portion rotatably provided at both ends of a cutting portion, and the pressing portion is rotated by its own weight. Then, the cutting board sheet mounting base plate is characterized in that one end of the cutting board sheet is pressed and fixed to the cutting portion by the upper end of the pressing portion. 2. A cutting unit for mounting a cutting board sheet,
A cutting board sheet mounting base plate comprising fixing means for fixing the cutting board sheet, wherein the fixing means is a step or a protrusion provided around the cutting section, and the surface where the cutting board sheet and the cutting section contact each other. A cutting board sheet mounting base plate, characterized in that the surface of the cutting board is made smooth and an adhesive effect is produced by dropping water drops. 3. A cutting unit for mounting a cutting board sheet,
A cutting board sheet mounting base plate comprising fixing means for fixing the cutting board sheet, wherein the end of the fixing means is extended to serve as a cooking material storage space. 4. A cutting unit for mounting a cutting board sheet,
A cutting board sheet mounting base plate comprising fixing means for fixing a cutting board sheet, characterized in that an end of the fixing means is projected upward to serve as a fall-prevention portion for cooking ingredients. Base plate. 5. A cutting board sheet, which is used by being attached to a cutting board sheet mounting base plate, wherein the upper surface is a weak cutting resistant material and the lower surface is a strong cutting resistant material. A cutting board sheet that can be used by being attached to the cutting board sheet mounting base plate according to claim 4. 6. The cutting board sheet has a sheet-like body made of a flexible material on an upper surface and a foil or a sheet-like body made of a hard material on a lower surface, wherein the flexible material and the hard material are laminated to each other. A cutting board sheet according to item 5. 7. The cutting board sheet according to claim 5, wherein the cutting board sheet is subjected to a curing treatment from the back surface of a flexible synthetic resin sheet-like body so that the upper surface is flexible and the lower surface is hard. 8. A cutting board in which a cutting board sheet is arranged on any of the cutting board sheet mounting base plates according to any one of claims 1 to 4.